Template:Bräuchler, Meimberg & Heubl, 2004
- Bräuchler, C., Meimberg, H. & Heubl, G. 2004. Molecular phylogeny of the genera Digitalis L. and Isoplexis (Lindley) Loudon (Veronicaceae) based on ITS- and trnL-F sequences. Plant Systematics and Evolution 248(1): 111–128. DOI: 10.1007/s00606-004-0145-z ResearchGate